MQ-131

TECHNICAL DATA FEATURES Fast response and High sensitivity Stable and long life Simple drive circuit Wide detecting range APPLICATION They are used in air quality control equipments for buildings/offices, are suitable for detecting Of O3 . SPECIFICATIONS A. Standard work condition Symbol Vc VH RL RH PH Symbol Tao Tas RH Symbol Rs Parameter name Circuit voltage Heating voltage Load resistance Heater resistance Heating consumption Parameter name Using Tem Storage Tem Related humidity Parameter name Sensing Resistance Concentration Slope rate MQ-131 GAS SENSOR Technical condition 5V±0.1 6V±0.1 Variable 31Ω±5% Less than 1100mw Technical condition -10 -50 -20 -70 Less than 95%RH Technical parameter 100KΩ-200KΩ (50ppb O3 ) ≤0.65 Remarks AC or DC AC or DC Room Tem B. Environment condition Remarks C. Sensitivity characteristic Remark 2 Detecting concentration scope 10ppb-2ppm O3 α O3 (100ppb/50ppb) Standard Detecting Condition Preheat time Temp: 20 ±2 Vc:5V±0.1 Humidity: 65%±5% Vh: 6V±0.1 Over 24 hour D. Structure and configuration, basic measuring circuit 1 2 3 4 5 6 7 8 9 Parts Gas sensing layer Electrode Electrode line Heater coil Tubular ceramic Anti-explosion network Clamp ring Resin base Tube Pin Materials SnO2 Au Pt Ni-Cr alloy Al2O3 Stainless steel gauze (SUS316 100-mesh) Copper plating Ni Bakelite Copper plating Ni Fig. 1 AÏ ò Free Datasheet http://www.datasheet4u.com/ Structure and configuration of MQ-131 gas sensor is shown as Fig.1, sensor composed by micro...